This is the use of the copper strip for rolled copper foil in the latest technical field of semiconductor integrated circuits, creating a new situation.The electronics industry is an emerging industry, and in the course of its prosperous development, new products and new fields of use of steel have been continuously announced. In practice, in order to process at high speed and in large quantities, the lead structure is usually stamped on a metal strip in a specific placement method. The number of transistors that can be made on a single chip area smaller than Xiaomu's nails has already reached 100,000 or more than one million. After alloying, it can control its function in a wide range and can better satisfy the lead structure.
Its presentation has caused huge innovations in computers and become the foundation of modern information technology. Printed circuit Copper printed circuit is to use copper foil as the surface and paste
it on the plastic board as the support; print the circuit wiring diagram on the copper plate by photographing method; remove the remaining part after etching to leave each other Connected circuits. This microcircuit is tens of thousands of times smaller in size and component than the most compact discrete component circuit in structure. 2. If the immersion plating method is selected, the welding of all joints can be completed at once.
They require high-purity oxygen-free copper and dispersion-strengthened oxygen-free copper. In this way, for those occasions that require precise placement of circuits, such as radios, televisions, computers, etc. In addition, a variety of copper-based brazing materials with low cost, low melting point, and good fluidity are required in the circuit connection
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